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131103513200 = 245211298312379
BaseRepresentation
bin111101000011001100…
…0001101101001110000
3110112101211101112011002
41322012120031221300
54121444444410300
6140121135141132
712320603322002
oct1720630155160
9415354345132
10131103513200
1150667573a10
12214aa3747a8
13c4946b561a
1464b9c80372
153624b905d5
hex1e8660da70

131103513200 has 240 divisors, whose sum is σ = 359770723200. Its totient is φ = 45471820800.

The previous prime is 131103513179. The next prime is 131103513217. The reversal of 131103513200 is 2315301131.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 10584611 + ... + 10596989.

It is an arithmetic number, because the mean of its divisors is an integer number (1499044680).

Almost surely, 2131103513200 is an apocalyptic number.

131103513200 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 131103513200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (179885361600).

131103513200 is an abundant number, since it is smaller than the sum of its proper divisors (228667210000).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

131103513200 is a wasteful number, since it uses less digits than its factorization.

131103513200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12520 (or 12509 counting only the distinct ones).

The product of its (nonzero) digits is 270, while the sum is 20.

Adding to 131103513200 its reverse (2315301131), we get a palindrome (133418814331).

The spelling of 131103513200 in words is "one hundred thirty-one billion, one hundred three million, five hundred thirteen thousand, two hundred".